Untitled record

Full Description

Background of the sister

The invention relates to an impact device, specifically a drill pipe string, which has a pipe of variable length and longitudinal extension, which has a first pipe element and a second pipe element that can be moved in the direction of the longitudinal extension with respect to the first pipe element, wherein at least the second pipe element is accommodated.

<p dir="rtl">5 In sections in the first tube element, wherein at least one electrical line extends from the first tube element to the second tube element, which is connected to the first tube element and the second tube element and is wound in a coil in a central section around at least one of the tube elements, preferably the second tube element.</p>

Impact rigs (in English, "impactors" or "impactors") are components of drilling equipment 10 known in the field of drilling technology, particularly in crude oil, natural gas and energy drilling.

Geothermal. An impactor is a tool used when the drill string is stuck or cannot be easily moved or driven up or down in a drill hole. The impactor is usually located approximately at the “neutral point” of the drill string, meaning the area where the drill string experiences neither tensile nor compressive forces during drilling. This area is usually located at the top of the “hold

<p dir="rtl">15 The tool (in English: “bottom hole assembly” or “BHA”), i.e. approximately 100 m to 200 m above the drilling rig. However, the impactor can of course be placed elsewhere, making it possible for the operator at the surface to strike the drill string or drill rig and dislodge the drill string or drill rig again. In the frequently used design of this impactor, the latter has two jigs that can be moved relative to each other in the longitudinal direction of the drill string, where</p>

<p dir="rtl">20 The moving part usually contains a hammer, which strikes an anvil fixed to a chain.</p>

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Drilling, by which a portion of the drill string that has become stuck in the drill hole due to impact or multiple impacts can be displaced back into the hole.

US Document 2005/285752 discloses a transmission system in a downhole component, comprising: a data transmission element at each end of the downhole component, wherein each data transmission element contains:

<p dir="rtl">5 An electrically conductive coil in a circular MCEI basin, wherein the electrically conductive coil comprises at least two partial rings</p>

Where the transmission elements are connected to an electrical conductor.

International Document 2014/012349 discloses a logging-while-drilling information transmission device, comprising a hollow drill rod electrically connected to ground equipment and at least one cable, wherein

<p dir="rtl">10 The drill rod has at least one first drill rod member and at least one second drill rod member alternately connected to each other; the first drill rod member includes a perforated hole, the second drill rod member includes a stepped hole, each of the cables includes a fixed end, a connecting end, and a collapsible portion connecting the fixed end to the connected end; each cable is fixed in the perforated hole through the fixed end or is connected to the connected end of an adjacent cable;</p>

<p dir="rtl">15 The connected end is extendable along the included slot, extending through the slot to be electrically connected to a recording device or fixed end of an adjacent cable.</p>

A fundamental element of modern drilling operations, particularly in crude oil, natural gas and geothermal drilling, is data acquisition and control of various drill string modules during the drilling process, when entering and exiting the drill hole or in

<p dir="rtl">20 Other processing procedures using the drill string in the drill hole, as well as optional power supply.</p>

Electrical for modules. To achieve this, one or more lines are extended along the drill string from the surface to the drilling rig. However, in an area containing an impactor, problems arise with the formation of a controlled pipeline, since the longitudinal axial change of the drill string in the area of the impactor must be compensated. In this case, it has long been known (for example,

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US Patent 6/991.035 B2( to wind the line in a coil around one of the two pipe elements that can be moved axially relative to each other, where the longitudinal change of the drill string can be easily compensated for by the coil winding. However, the transition zone between the coil-like line-wrap section and the adjacent connected sections on either side is problematic,5 because the line there has a sharp bend or a bend with a relatively small radius, which is subject to stress

High in case of frequent operation of the impactor and due to the oscillations that occur during the drilling process.

General description of the invention

Therefore, the purpose of the spool is to improve the line's hold on the impact device.

According to the choice of the shear, at least one scroll-like groove is placed on a pipe section, and preferably 10 on two pipe sections, where the groove is located in each case on a region of the central section.

Coil-like line. Since the line in the coil-like groove is essentially fixed in the same position, as in the central region, where the coil-like line winding compensates for the longitudinal change, the line can be connected largely stress-free to one or both of the tube elements, by which the next transitional region is kept stress-free in the connecting section(s).

<p dir="rtl">15 Although it is not necessary for the line to be placed in the groove at one end of the central section, and the coil-like central section can be extended over the relevant groove, it is nevertheless preferable in the case of a defect when the line is housed in the groove at one end of the central section. The transition zone can then be placed directly adjacent to the connecting section(s).</p>

The line may be held in the groove by a fastening device, preferably a clamp or sleeve.

<p dir="rtl">20 Alternatively, it is also possible in the case of the invention to fix the line to the connecting section on the pipe element, preferably by means of a clamp, where this fixation is ideally (but not necessarily) made directly behind the groove or at the end of the coil-like central section.</p>

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Depending on the choice, the scroll-like groove can be attached directly to one or another of the tube elements. However, it is preferable to place the scroll-like groove on a sleeve fixed to a tube element, as this is simpler in manufacturing technology.

It is known from the latest technology that the line is housed at least in the central section, optionally also

<p dir="rtl">5 In adjacent connection sections, preferably in a flexible metal cover. This method is also preferred in the case of a shock device according to the following choice. In this case, according to the following choice, the cover is in the groove, where all the models and features described above in relation to the line also apply to the cover with the line sheltered in it.</p>

Additional preferred embodiments of the selection are the subject of other sub-claims.

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Brief explanation of the drawings

Additional features and advantages of the selection arise from the subsequent description of preferred models of the selection which are not limited to the scope of protection, with reference to the accompanying drawings. As follows:

Figure 1: Shows a schematic representation of a drilling rig,

Figure 2: Shows a model of an impact device according to the choice of the fourth, in an oblique slit, a partial section,

15 Figure 3: Shows a central portion of the impact device according to Figure 2 in the exploded state,

Figure 4: Shows the central part of the impact device according to Figure 2 in the pushed-together state,

Figure 5: Shows details of Figure 2, in expanded form,

Figure 6: Shows details of Figure 3, in an expanded form.

Figure 7: Shows another detail of the impact device according to the fourth choice, in an expanded form,

20 Figure 8: Also shows another detail of the impact device according to the fourth choice, in an expanded form, and

Figure 9: Shows a design of an electrical connector [as] it is protected by a partially cut-off cover.

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Detailed description:

In the drawings, models of a collision device according to the invention are depicted, which models are intended as examples only, however, apart from the features according to the invention, and as specified in the elements of protection, they can also be implemented differently within the scope of this invention in relation to several components, without

<p dir="rtl">5 This requires special mention below.</p>

Figure 1 schematically depicts drilling platform 1 with oil platform 2 tower, where drill pipes are run.

<p dir="rtl">4 Connected to the drilling string alternately via a motor 3, the so-called “top motor”, in order to produce a drill hole 5. It is understood that the design of the drilling rig 1 is intended only as an example and can also be implemented in several other ways known to the latest technology.</p>

<p dir="rtl">10 The drill pipes 4 are connected via couplers 6 to a connecting rod, where one or more electrical lines 7 are placed in the drill pipes 4, so that the lines can extend, for example, inside the drill pipes 4. The couplers 6 allow galvanic connection of the electrical lines 7 that extend in the individual drill pipes 4 and can be designed. It is also of course possible to have another route for the electrical lines 7 inside the drill pipes and another design of the couplers 6. Galvanic connection of the lines is preferred</p>

<p dir="rtl">15 Electrical 7, but not necessary, in the area of the couplers 6.</p>

In the illustrated embodiment, instead of the lower drill pipe 4, an impact device 8 is provided in accordance with the following.

A drilling rig 9 or any other tool or element of the drill string is mounted on the lower end of the impactor. In the drilling rig 9, moreover, also on or in several drill pipes 4 or optionally also, there can be electrical consumables, sensors, or units

<p dir="rtl">20 Typical, or similar, not pictured and connected to electrical lines 7.</p>

On the surface, i.e. above the bottom 11 or, for example, a berth of an offshore drilling platform on which the drilling platform 1 can be positioned, there being, in a protected area, for example, a building 12 or a container or the like, a conductor 13 for electrical power, and/or a control unit 14 for supplying and/or receiving control signals or measuring data.

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In the partial section, Fig. 2 depicts an embodiment of the impact device 8 according to the choice of the following. It essentially consists of a central part 15 with, in each case, connecting parts 16a, 16b at the ends. In the illustrated embodiment, the connecting part 16a has a box 6a having a conical internal thread, and the connecting part 16b has a bolt 6b having a conical external thread. Also, each drill pipe 4

<p dir="rtl">5 On the corresponding box 6a and the screw 6b, together forming a coupling 6, on the drill pipe 4, one or more impact devices 8, as well as other technical devices, which can be connected together, if necessary, inside the drill string or can be placed on its end (e.g., the drilling rig 9).</p>

The central part 15, which forms the functionally active part of the impact device 8, has – in the fixed position – an upper part 17 and a lower part 18, which can be moved relative to each other. In particular, in the illustrated embodiment, the smaller diameter upper part 17 can be moved within

The bottom part with the largest diameter is 18.

The lower part 18 contains a sheath 19, in which the first tube element 21 and the second tube element 22 are accommodated, which can be moved relative to each other. In the embodiment shown in the drawings, the first tube element 21 has a larger diameter than the second tube element 22, and the second tube element 22 can be moved 15 inside the first tube element 21 in the longitudinal extension of the elements

Tube 21 or 22 or impact device 8.

The upper part 17 is mechanically tightly connected to the second tube element 22. When the upper part 17 is extracted from the lower part 18, the second tube element 22 is also extracted from the first tube element 21. Figures 3 and 5 depict the position where the second tube element 20 22 is extracted as far as possible from the first tube element 21 under normal operating conditions,

Figures 4 and 6 illustrate the position where under normal operating conditions the second tube element 22 is pushed as far as possible into the first tube element 21.

The power line 7 also passes through the impact device 8 from box 6A to the screw 6B. Since the connection part 16A is rigidly connected to the upper part 17, and the upper part 17 is rigidly connected

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Solid with the second tube element 22, the conductor 7 can extend mainly in this area and in the direction of the longitudinal extension of the impact device 8. In turn, the lower part 16b is tightly connected to the first tube element 21, so that the conductor 7 can also extend mainly in this area and in the direction of the longitudinal extension of the impact device 8.

<p dir="rtl">5 However, it is necessary to equalize the length of the line, between the first tube element 21 and the second tube element 22, where the tube elements 21, 22 can be moved opposite each other in the longitudinal direction. For this purpose, the line 7 is like a coil wound in a central section 23 around the second tube element 22, where the length can be easily equalized by the coils, as in Figs. 3 to 6 in particular.</p>

<p dir="rtl">10 The line 7 (there may also be multiple lines) is housed in the impact device 8 from the box 6a to the screw 6b in a metal cover 24 or a metal tube, through which the line 7 is protected from harmful environmental influences. Fig. 9: shows the terminal section 34 of the central section 23 of the line 7 with the adjacent section. It is clear that the line 7 is housed in the cover 24, shown in partial section.</p>

<p dir="rtl">15 In order to connect the line 7 or its cover 24 to the first pipe element 21 and the second pipe element 22, a coil-like groove 25, 26 is connected to each of the pipe elements 21, 22, where the groove is in each case located at the end section 34, 35 of the central section 23 of the line 7 or the cover 24. This is best illustrated in Figs. 7 and 8.</p>

The first connecting section 29 and the second connecting section 30 of line 7 or cover 24 are connected to the sections.

<p dir="rtl">20 Terminal 34, 35 of the central coil-like section 23 of line 7 or cap 24.</p>

The grooves 25 and 26 can theoretically be formed directly on the tube elements 21 and 22, for example by machining. In the preferred embodiments shown in the drawings (see in particular Figs. 7 and 8), the scroll-like grooves are placed on the sleeves 27, 28, which

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They are fixed to the tube elements 21, 22. Also, the combination of models will be possible, of course, by means of only one bushing 27 or 28 provided on one of the tube elements 21 or 22.

Line 7 or cover 24 can be installed deep enough for grooves 25, 26, and high enough strength.

For cover 24, and a large enough number of turns without special and additional fixing, without extracting the cover 24

<p dir="rtl">5 From the grooves 25, 26 when the first tube element 21 and the second tube element 22 are pulled away in the position shown in Figures 3 and 5.</p>

However, for safety reasons, it is also possible for the cover 24 to be additionally fixed in the grooves 25, 26. This can be done by any fixing technique, in particular non-positive and/or positive and/or integral connection, e.g., gluing, clamping or sleeve, not shown in

<p dir="rtl">10 The drawings, which are run across the connection area. Also, it is possible to fix the cover 24 by means of a sleeve 19 placed in the critical area above the grooves 25, 26 (at a short distance from the cover 24), which prevents the cover 24 from slipping out of the grooves 25, 26. This model is depicted in, for example, Fig. 8.</p>

In a particularly preferred embodiment of the impact device according to the selection, the connecting sections 29 are installed,

<p dir="rtl">15 30 Behind the curved transition area (between the edges 34, 35 of the central coil-like section 23</p>

The extended connecting sections 29, 30 (in addition by means of clamps 31, 32, which, on the one hand, provide reliable traction of the connecting sections 29, 30, and on the other hand, a safety device is provided, [so that] the cover 24 is not pulled out of the grooves 25, 26.

Figures 7 and 8 show a model without the clamps 31, 32.

<p dir="rtl">20 Any combination of the above measures to keep the connector 7 or the cover 24 from being pulled out of the grooves 25, 26 is, of course, also possible.</p>

The design of the impactor 33, i.e. the unit inside the impactor 8, which generates the knock or impact, if necessary, is not described structurally in more detail, as it is well defined by the state of the art. The function of the impactor 33 is to store the deformation energy (in the case of impactors

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Double action by tension and compression (for drill string), when a tight drill string is extracted from drill hole 5 or pressed into drill hole 5, where, for example, a drill bit 9 or part of a drill rod is fixed.

In this case, in the example of a shock absorber that only works in tension, starting

<p dir="rtl">5 From the position shown in Figs. 4 and 6, the upper part 17 is extracted from the lower part 18 and thus the second tube element 22 is also extracted from the first tube element 21 in the position shown in Figs. 3 and 5. The second tube element 22 or a part connected to it protrudes into the impact device 33 and creates a force through relative motion (pressure in the case of hydraulic impact devices), which is suddenly released after crossing a certain path or a certain force (or pressure), which is referred to as</p>

<p dir="rtl">10 Also called "ignition", whereby a mounted hammer strikes, for example, the second tube element 22</p>

or the part connected to it by an anvil fixed, for example, to the impactor 33 with great force and with this impact displaces the underlying component of the drill string. If the first impact is not sufficient and the drill string is still blocked, the drill string is removed again, so that the impactor 8 again reaches the position shown in Figures 4 and 6, at which point a renewed impact can be generated to displace the component

<p dir="rtl">15 The hidden by re-extracting the upper part 17 from the lower part 18.</p>

The same procedure can be applied with a pressure-operated impactor. In this case, the starting position will be the extended position shown in Figures 3 and 5, and the impactor is pressed together in the position shown in Figures 4 and 6 until it ignites. In the case of a double impactor, the neutral starting position will be a position central to the positions shown in Figures 3 and 5,

<p dir="rtl">20 On the one hand, and the position shown in Figures 4 and 6, on the other hand. For ignition, the impact device can then be pulled apart in the position shown in Figures 3 and 5 and pressed together in the position shown in Figures 4 and 6.</p>

Reference list:

1 Drilling platform

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<p dir="rtl">2 drilling platform tower</p>

<p dir="rtl">3 Engine</p>

<p dir="rtl">4 drill pipe</p>

<p dir="rtl">5 drill hole</p>

<p dir="rtl">5 6 comparison</p>

6a box

6b nail

<p dir="rtl">7 Power line</p>

<p dir="rtl">8 impact device</p>

<p dir="rtl">10 9 ars drilling</p>

<p dir="rtl">10 –</p>

<p dir="rtl">11 bottom</p>

<p dir="rtl">12 building</p>

<p dir="rtl">13 conductor</p>

15 14 control unit

<p dir="rtl">15 Central part</p>

<p dir="rtl">16A connection part</p>

<p dir="rtl">16B Connection Part</p>

17 upper part

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18 Bottom

19 sheath

<p dir="rtl">20 -</p>

<p dir="rtl">21 First tube element</p>

<p dir="rtl">5 22nd tube element</p>

23 Central Section

24 cover

<p dir="rtl">25 scroll-like groove</p>

<p dir="rtl">26 scroll-like groove</p>

<p dir="rtl">10 27 noise</p>

28 commotion

<p dir="rtl">29 First Delivery Section</p>

<p dir="rtl">30 Second Delivery Section</p>

<p dir="rtl">31 Clamp</p>

15 32 qamata

<p dir="rtl">33 impact device</p>

<p dir="rtl">34 Central section tip</p>

<p dir="rtl">35 Central section tip</p>

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